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   <div id="projectname">FLITr
   &#160;<span id="projectnumber">1.x</span>
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   <div id="projectbrief">Framework for Live Image Transformation.</div>
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<div class="title">simple_cpu_shader_pass.h</div>  </div>
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<a href="simple__cpu__shader__pass_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/* Framework for Live Image Transformation (FLITr)</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright (c) 2010 CSIR</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * This file is part of FLITr.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * FLITr is free software: you can redistribute it and/or modify it</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * under the terms of the GNU Lesser General Public License as</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> * published by the Free Software Foundation, either version 3 of the</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> * License, or (at your option) any later version.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * FLITr is distributed in the hope that it will be useful, but</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * Lesser General Public License for more details.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> * License along with FLITr. If not, see</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> * &lt;http://www.gnu.org/licenses/&gt;.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#ifndef SIMPLE_CPU_SHADER_PASS_H</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"><a class="code" href="simple__cpu__shader__pass_8h.html#a645e77299982d26414986ec891005357">   22</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define SIMPLE_CPU_SHADER_PASS 1</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="flitr__export_8h.html">flitr/flitr_export.h</a>&gt;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#include &lt;osg/ref_ptr&gt;</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &lt;osg/Group&gt;</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &lt;osg/Camera&gt;</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &lt;osg/MatrixTransform&gt;</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &lt;osg/Projection&gt;</span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#include &lt;osg/Geode&gt;</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &lt;osg/Geometry&gt;</span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor">#include &lt;osg/Texture2D&gt;</span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#include &lt;osg/TextureRectangle&gt;</span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="preprocessor">#include &lt;osg/Image&gt;</span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor">#include &lt;iostream&gt;</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="keyword">namespace </span>flitr {</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html">   40</a></span>&#160;<span class="keyword">class </span><a class="code" href="flitr__export_8h.html#a954cc8ba3eaae88472e9d8f406ca4a86">FLITR_EXPORT</a> <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html">SimpleCPUShaderPass</a> {</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass_1_1_c_p_u_shader.html">   43</a></span>&#160;    <span class="keyword">class </span><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass_1_1_c_p_u_shader.html">CPUShader</a> : <span class="keyword">public</span> osg::Camera::DrawCallback</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    {</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    };</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass_1_1_c_p_u_example___shader_pass.html">   47</a></span>&#160;    <span class="keyword">class </span><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass_1_1_c_p_u_example___shader_pass.html">CPUExample_ShaderPass</a> : <span class="keyword">public</span> <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass_1_1_c_p_u_shader.html">CPUShader</a></div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    {</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    <span class="keyword">public</span>:</div>
<div class="line"><a name="l00050"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass_1_1_c_p_u_example___shader_pass.html#aacec9ae5c1b154bbbaaefeace44e07f6">   50</a></span>&#160;        <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass_1_1_c_p_u_example___shader_pass.html">CPUExample_ShaderPass</a>(osg::Image* image) :</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;            Image_(image)</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;        {</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;        }</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;        </div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass_1_1_c_p_u_example___shader_pass.html#a782719c40fba1d8886a1d595abff267b">   55</a></span>&#160;        <span class="keyword">virtual</span> <span class="keywordtype">void</span> operator () (osg::RenderInfo&amp; renderInfo)<span class="keyword"> const</span></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="keyword">        </span>{</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> width=Image_-&gt;s();</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> height=Image_-&gt;t();</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> numPixels=width*height;</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> numComponents=osg::Image::computeNumComponents(Image_-&gt;getPixelFormat());</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> data=(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)Image_-&gt;data();</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;            <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> i=0; i&lt;(numPixels*numComponents); i++)</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;            {</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;                data[i]=(<span class="keywordtype">unsigned</span> char)(pow(data[i]/(<span class="keywordtype">float</span>)255.0f, 2.0f)*255.0+0.5);</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;            }</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;            std::cout &lt;&lt; <span class="stringliteral">&quot;*&quot;</span>;</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;            std::cout.flush();</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;            Image_-&gt;dirty();</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;        }</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</div>
<div class="line"><a name="l00074"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass_1_1_c_p_u_example___shader_pass.html#a2d993e7b551ec56e6a12b041f0b55740">   74</a></span>&#160;        osg::Image* <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass_1_1_c_p_u_example___shader_pass.html#a2d993e7b551ec56e6a12b041f0b55740">Image_</a>;</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    };</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html">SimpleCPUShaderPass</a>(osg::ref_ptr&lt;osg::Image&gt; in_img, <span class="keywordtype">bool</span> read_back_to_CPU = <span class="keyword">false</span>);</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html">SimpleCPUShaderPass</a>(osg::ref_ptr&lt;osg::TextureRectangle&gt; in_tex, <span class="keywordtype">bool</span> read_back_to_CPU = <span class="keyword">false</span>);</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    ~<a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html">SimpleCPUShaderPass</a>();</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;</div>
<div class="line"><a name="l00083"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a49491a3c6deac1973477903507a053f5">   83</a></span>&#160;    osg::ref_ptr&lt;osg::Group&gt; <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a49491a3c6deac1973477903507a053f5">getRoot</a>() { <span class="keywordflow">return</span> RootGroup_; }</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div>
<div class="line"><a name="l00085"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#ac04656886220531e86fb8aae5c448cde">   85</a></span>&#160;    osg::ref_ptr&lt;osg::TextureRectangle&gt; <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#ac04656886220531e86fb8aae5c448cde">getOutputTexture</a>() { <span class="keywordflow">return</span> OutTexture_; }</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;</div>
<div class="line"><a name="l00087"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#ab075c6446e520dc06608770325633ef9">   87</a></span>&#160;    osg::ref_ptr&lt;osg::Image&gt; <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#ab075c6446e520dc06608770325633ef9">getOSGImage</a>() { <span class="keywordflow">return</span> OutImage_; }</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;</div>
<div class="line"><a name="l00089"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a4fe823f430789e3ebe3334c0f733d0fa">   89</a></span>&#160;    osg::ref_ptr&lt;osg::Image&gt; <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a4fe823f430789e3ebe3334c0f733d0fa">getInImage</a>() { <span class="keywordflow">return</span> InImage_; }</div>
<div class="line"><a name="l00090"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a362cde7c71d8f666a79a5a2a2f0392e7">   90</a></span>&#160;    osg::ref_ptr&lt;osg::Image&gt; <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a362cde7c71d8f666a79a5a2a2f0392e7">getOutImage</a>() { <span class="keywordflow">return</span> OutImage_; }</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    <span class="keywordtype">void</span> setPreDrawCPUShader(CPUShader *cpuShader);</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    <span class="keywordtype">void</span> setPostDrawCPUShader(CPUShader *cpuShader);</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    <span class="keywordtype">void</span> setGPUShader(std::string filename);</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    osg::ref_ptr&lt;osg::Group&gt; createTexturedQuad();</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    <span class="keywordtype">void</span> setupCamera();</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div>
<div class="line"><a name="l00102"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a062238021d5a9c65a7dc477e7f6b1e2d">  102</a></span>&#160;    osg::ref_ptr&lt;osg::Group&gt; <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a062238021d5a9c65a7dc477e7f6b1e2d">RootGroup_</a>;</div>
<div class="line"><a name="l00103"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a9aefe0bf8e4f9fa6a5d985cda08bf2bb">  103</a></span>&#160;    osg::ref_ptr&lt;osg::Camera&gt; <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a9aefe0bf8e4f9fa6a5d985cda08bf2bb">Camera_</a>;</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;</div>
<div class="line"><a name="l00105"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a61a0e65771f5cab35fa0ce7eb8088e70">  105</a></span>&#160;    osg::ref_ptr&lt;osg::Image&gt; <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a61a0e65771f5cab35fa0ce7eb8088e70">InImage_</a>;</div>
<div class="line"><a name="l00106"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a19d1ac89a27787bb3309cf7bf689fab5">  106</a></span>&#160;    osg::ref_ptr&lt;osg::TextureRectangle&gt; <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a19d1ac89a27787bb3309cf7bf689fab5">InTexture_</a>;</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;</div>
<div class="line"><a name="l00108"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#acd60afb237dd24c0f560dad811d3b588">  108</a></span>&#160;    osg::ref_ptr&lt;osg::Image&gt; <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#acd60afb237dd24c0f560dad811d3b588">OutImage_</a>;</div>
<div class="line"><a name="l00109"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a4cb37254c30b2a7dc96f2c2fec32b75e">  109</a></span>&#160;    osg::ref_ptr&lt;osg::TextureRectangle&gt; <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a4cb37254c30b2a7dc96f2c2fec32b75e">OutTexture_</a>;</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;</div>
<div class="line"><a name="l00111"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a61434ee957bd72e55f22ec6b9ce36ec4">  111</a></span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a61434ee957bd72e55f22ec6b9ce36ec4">TextureWidth_</a>;</div>
<div class="line"><a name="l00112"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a987b50369179120d8b9c133a84a7b456">  112</a></span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a987b50369179120d8b9c133a84a7b456">TextureHeight_</a>;</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div>
<div class="line"><a name="l00114"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a77e18392534672fdbfe9aa7b3c18897e">  114</a></span>&#160;    osg::ref_ptr&lt;osg::Program&gt; <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a77e18392534672fdbfe9aa7b3c18897e">FragmentProgram_</a>;</div>
<div class="line"><a name="l00115"></a><span class="lineno"><a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a05df366959a80ee43d51de9e2ab71906">  115</a></span>&#160;    osg::ref_ptr&lt;osg::StateSet&gt; <a class="code" href="classflitr_1_1_simple_c_p_u_shader_pass.html#a05df366959a80ee43d51de9e2ab71906">StateSet_</a>;</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;};</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;}</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;<span class="preprocessor">#endif //SIMPLE_CPU_SHADER_PASS_H</span></div>
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